package day0601;

public class Test7 {
    public static void main(String[] args) {

        int year=1800;
        while(year<=2023){
            System.out.println(  (year%400==0)||(year%4==0&&year%100!=0) ? "闰年" : "不是闰年" );
        }



        int i=100;
        while(i<=1000){
            System.out.println(i);
            i++;
        }



        int i2=1;
        while(i2<=9){
            System.out.println(1 + "*" +i2 + "=" +  (1*i2) );
            i2=i2+1;
        }


    }
}

